#673D3D#673D3D

#673D3D is a dark, muted red. Relative luminance 0.066; OKLCH L 41.0% C 0.059 H 19.9°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#673D3D
RGB	rgb(103, 61, 61)
HSL	hsl(0, 26%, 32%)
HSV	hsv(0, 41%, 40%)
CMYK	cmyk(0%, 40.8%, 40.8%, 59.6%)
CIE-LAB	lab(30.78, 18.44, 7.85)
CIE-LCH	lch(30.78, 20.04, 23.06°)
OKLab	oklab(41.03% 0.0558 0.0202)
OKLCH	oklch(41.03% 0.059 19.9)
XYZ	xyz(8.1049, 6.5586, 5.2530)
Luminance	0.0656 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673D3D #3D6767

analogous

#673D52 #673D3D #67523D

triadic

#673D3D #3D673D #3D3D67

tetradic

#673D3D #52673D #3D6767 #523D67

square

#673D3D #52673D #3D6767 #523D67

split-complementary

#673D3D #3D6752 #3D5267

monochromatic

#1A0F0F #412626 #673D3D #8D5454 #AC7373

Accessibility & contrast

On white

9.08

#673D3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#673D3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673D3D

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673D3D	#FFFFFF	#000000	##FFFFFF
##673D3D	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45433D

Deuteranopia (green-blind)

#504C3C

Tritanopia (blue-blind)

#6F383D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #673d3d;
/* rgb */ color: rgb(103, 61, 61);
/* oklch */ color: oklch(41.0% 0.059 19.9);

Tailwind

colors: {
  custom: {
    50: '#947372',
    500: '#673d3d',
    950: '#000000',
  },
}

SCSS

$custom: #673d3d;
$custom-light: #947372;
$custom-dark: #000000;

JSON

{
  "hex": "#673d3d",
  "rgb": {
    "r": 103,
    "g": 61,
    "b": 61
  },
  "hsl": {
    "h": 0,
    "s": 25.61,
    "l": 32.157
  },
  "oklch": {
    "l": 0.41032,
    "c": 0.05936,
    "h": 19.9
  },
  "luminance": 0.06558
}

Semantic roles & 50–950 ramp

primary

#673D3D

secondary

#699797

accent

#C2C266

background

#F9F7F6

surface

#F2EDEC

border

#CCC8C7

text

#0D0808

muted

#7E7B7B

Preview Lab

Preview with #673D3D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →